NetiquamErro – I get very offended by that. But I am trying to work on some level of tolerance in that area too. While it is important to be upset about a lack of tznius, it is important to be tolerant of the provocateurs, and in any case it’s not healthy or productive to constantly be in a state of distress about anything, no matter how important.
I try to remind myself that they may not know better, or that perhaps they have worked hard on their tznius and that is why they are not dressed worse, or that there are bigger aveiros that do more harm such as loshon hora, and sinas chinam.